component
SE9012-HF
Public Unreviewedby Ray
Seaward Elec Battery Management, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads when scrolled away or the tab is hidden.
PCB Footprint
Open full view ↗Loads on click. Unloads when scrolled away or the tab is hidden.
Datasheet
Open in new tab ↗Loads on click. Unloads when scrolled away or the tab is hidden.
README
markdownSE9012-HF
Seaward Elec · Battery Management · SOT-23-6
SE9012-HF from Seaward Elec, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | CHRG | output | Open-drain charge-status output. Pulled low by an internal N-channel MOSFET while the battery is charging (typ. ~10mA sink) and goes high-impedance when the charge cycle is complete. Typically drives a status LED to ground through a series resistor. |
| 2 | GND | power_in | Device ground reference. Also acts as the primary thermal path from the die/lead frame to the PCB copper, so it should connect to a wide ground plane for best power-dissipation performance. |
| 3 | BAT | power_out | Charge current output to the Li-ion/Li-polymer battery. Regulated to a 4.22V float voltage (±1%) with programmable current up to 200mA (IBAT max 300mA absolute). May be short-circuited to GND continuously; battery drain in shutdown is <1µA. |
| 4 | VCC | power_in | Positive input supply. Operating range 3.7-5.5V (absolute max 7V); UVLO threshold ~3.5V with 100mV hysteresis. Bypass with at least a 1µF capacitor close to the pin; add ~1.5Ω series with ceramic input caps to suppress hot-plug transients. |
| 5 | STDBY | output | Open-drain charge-termination (standby) status output, also labeled CHRGT in the datasheet text. High-impedance while charging; pulled low by an internal N-channel MOSFET once the charge cycle terminates. Typically drives a 'charge complete' LED. |
| 6 | PROG | bidirectional | Charge-current program, monitor and shutdown pin. A resistor from PROG to GND sets IBAT = 200V / RPROG (e.g., 1kΩ → 200mA, 10kΩ → 20mA); VPROG ≈ 1.03V in current mode. Serves as an analog charge-current monitor (IBAT = VPROG/RPROG × 200) and as manual shutdown when pulled above ~1.25V. Keep the pole at this node above 100kHz for stability. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Seaward Elec |
| Package | SOT-23-6 |
| Category | PMIC |
| Pins | 6 |
Ordering variants
Same part, different packaging or reel option.
SE9012-HF
CAD (KiCad official)
- Symbol:
SE9012-HF - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Seaward Elec datasheet (10 pp, sha256
0c840a6a88736c99, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).